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C7 Low Voltage Systems License (California)
California has 4,690 active C7 Low Voltage Systems holders in the state file as of 2026-10-261, the 12th-largest of 64 classes with at least 200 holders. 180 of them expire by 2026-12-26.
- Active holders
- 4,690
- 2.0% of active California licenses
- Expiring by 2026-12-26
- 180
- 3.8% of holders
- Median bond on file
- $25,000
- 4,685 bonds
- Workers' comp exempt
- 38.0%
- of 4,690 with WC status
How many C7 contractors are exempt from workers' comp?
1,784 of 4,690 active C7 holders with a recorded status (38.0%) filed an exemption1, against 48.7% across all California classes.
How do you check a C7 license?
Search by license number or business name on the California license lookup, which reads the same state file.
Other California license classes
- C8 Concrete5,303
- C6 Cabinet, Millwork and Finish Carpentry4,235
- C9 Drywall3,195
- C54 Ceramic and Mosaic Tile6,087
- C39 Roofing5,550
- C17 Glazing3,047
- C15 Flooring and Floor Covering6,731
- C53 Swimming Pool2,853
Sources
- CA CSLB License Master (cslb.ca.gov data portal) (cslb.ca.gov, 2026-10-26)